<template>
	<view>
		<view class="search-box">
			<uni-search-bar focus="true" @input="input" :radius="100"  cancel-button="none"></uni-search-bar>
		</view>
		
		<!-- 搜索建议列表 -->
		<view class="sugg-list" v-if="searchResults.length !== 0">
			<view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item)">
				<view class="goods-name">{{item.goods_name}}</view>
					<uni-icons type="arrowright" size="16" ></uni-icons>
			</view>
			
		</view>
		
		<!-- 搜索历史 -->
		<view class="history-box" v-else>
			<!-- 标题区域 -->
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="clean"></uni-icons>
			</view>
			<!-- 列表区域 -->
			<view class="history-list">
				<uni-tag :text="item" v-for="(item,i) in histries"  :key="i" @click="gotoGoodsList(item)"></uni-tag>
			</view>
			
		</view>
		

		
		
	</view>
	
</template>

<script>
	export default {
		data() {
			return {
				timer:null,
				kw:'',
				//搜索的结果
				searchResults:[],
				//搜索历史的数组
				historyList:[]
			};
		},
		onLoad(){
			this.historyList = JSON.parse(uni.getStorageSync('kw' || '[]'))
		},
		methods:{
			input(e){
				clearTimeout(this.timer)
				// console.log(e)
				this.timer=setTimeout(()=>{
					this.kw = e
					console.log(this.kw)
					this.getSearchList()
				},500)
			},
			async getSearchList(){
				if(this.kw.length === 0){
					this.searchResults = []
					return
				}
				const {data:res} = await uni.$http.get('/api/public/v1/goods/search',{query:this.kw})
				if(res.meta.status !== 200) return uni.$showMsg()
				this.searchResults = res.message.goods
				// console.log(this.searchResults)
				this.saveSearchHistory()
				
			},
			gotoDetail(item){
			  // console.log('点击了搜索项:', item)
			  // console.log('goods_id是否存在:', item.goods_id)
			  if(item.goods_id){
			    uni.navigateTo({
			      url:'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
			    })
			  } else {
			    console.error('goods_id不存在')
			  }
			  },
			  saveSearchHistory(){
				  // this.historyList.push(this.kw)
				  const set = new Set(this.historyList)
				  set.delete(this.kw)
				  
				  set.add(this.kw)
				  this.historyList = Array.from(set)
				  
				  //对搜索历史数据，进行持久化存储
				  uni.setStorageSync('kw',JSON.stringify(this.historyList))
				  
				  
			},
			clean(){
				this.historyList = []
				uni.setStorageSync('kw','[]')
			},
			gotoGoodsList(kw){
				uni.navigateTo({
					url:'/subpkg/goods_list/goods_list?query=' + kw
				})
			}
			
		},
		computed:{
			histries(){
				return [...this.historyList].reverse()
			}
		}
	}
</script>

<style lang="scss">
	.search-box{
		background-color:#F2B7D3 ;
		position: sticky;
		top: 0;
		z-index: 999;
	}
	// .sugg-list {
	//   background-color: pink; /* 加个背景色，看是否渲染出区域 */
	//   // 其他原有样式
	// }
	// .sugg-item {
	//   border: 1px solid #000; /* 加边框，看每个条目是否渲染 */
	//   // 其他原有样式
	// }
	.sugg-list{
		padding: 0 5px;
		.sugg-item{
			display: flex;
			align-items: center;
			justify-content: space-between;
			font-size: 12px;
			padding: 13px 0;
			border-bottom: 1px solid #c6c6c6;
			
			.goods-name{
				white-space: nowrap;
				overflow: hidden;
				text-overflow: ellipsis;
			}
		}
	}
	.history-box{
		padding: 0 5px;
		.history-title{
			display: flex;
			justify-content: space-between;
			height: 40px;
			align-items: center;
			font-size: 13px;
			border-bottom:1px solid #efefef ;
		}
		.history-list{
			display: flex;
			flex-wrap: wrap;
			.uni-tag{
				margin-top: 5px;
				margin-right: 5px;
				background-color: #e1e1e1;
				color: black;
			}
			
		}
	}

</style>
